package com.robotlab.easytranslate.util;

public class StringUtil {
    //首字母转小写
    public static String toLowerCaseFirstOne(String s){
        if(!s.equals(null)) {
            if (Character.isLowerCase(s.charAt(0)))
                return s;
            else
                return (new StringBuilder()).append(Character.toLowerCase(s.charAt(0))).append(s.substring(1)).toString();
        } else return "";
    }
    //首字母转大写
    public static String toUpperCaseFirstOne(String s){
        if(Character.isUpperCase(s.charAt(0)))
            return s;
        else
            return (new StringBuilder()).append(Character.toUpperCase(s.charAt(0))).append(s.substring(1)).toString();
    }
}
